Coupling Display Device and Tiled Display Device Having the Same

2. The tiled display device of claim 1, wherein the coupler includes an adhesive interposed between a front surface of the neighboring seam areas of the element display panels and a lower surface of the boundary display panel.

9. The coupling display device of claim 8, wherein the protruding member includes a magnetic body secured to a rear surface of the neighboring element display panels by a magnetic force.

10. The coupling display device of claim 8, wherein the boundary driver includes a display drive integrated circuit package which is detachably secured to the bent portion and is disposed on the rear portion of the neighboring element display panels.

11. The coupling display device of claim 7, wherein the coupler includes an adhesive interposed between a front surface of the neighboring seam areas of the neighboring element display panels and a lower surface of the boundary display panel.

16. The coupling display device of claim 15, wherein the coupling panel driver includes a data interpolation unit which interpolates the converted data signals in a way such that an image data of no image pixel of the coupling pixel array is inferred from an image data of a pair of pixels neighboring the no image pixel.

19. The coupling display device of claim 18, wherein the signal processor includes a gradation operator which operates the boundary driver in the multi panel mode such that a whole gradation of the boundary display panel is similar to edge gradations of the element display panels symmetric with each other with respect to the boundary display panel.

20. The coupling display device of claim 19, wherein the gradation of the boundary display panel is a mean value of the gradation data of panel pixels of the neighboring element display panel which are closest to the boundary display panel and opposite to each other with respect to the boundary display panel.